Window-screen



M. FORCOZ.

WINDOW SCREEN.

APPLICATION FILED SEPT. 23, I916.

Patented Mar. 30, 1920.

ATTORNEY window is closed, which does not MAURICE roncoz, or srmrronn comnoricur.

. WINDOW-SCREEN. 1

I To all whom it may concern:

Be it known that I, "MAURICE FoRcoz, a

citizen of France, residing at Stratford, in.

thecounty of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Window-Screens,'of which the following is a specification.

This invention relate generally to window screens, and particularly to that type of screens which raise and lower as the .sliding sash is opened or closed.

A further object of the invention is to pro--v vide a screening device of this character provided with improved tensioningmeans', whereby the mesh fabric is at all times maintained in proper position and is insured against buckling. or wrinkling.

A still further object of the invention is to provide a screen of the roll type for use in connection'with window frames having sliding sashes, and wherein the screen fabric is tightly and compactly rolled when the rove an unsightly attachment, but which Wlll prove thoroughly eflicient in the attainment of the ends for which it is designed. a With these objects in view, together with others which will appear as the description proceeds, the invention resides in the novel formation, combination and arrangement of parts, all as will be described more fully hereinafter, illustrated in the drawings, and particularly pointed out in the claim.

In the drawings p Figure 1 is a view illustrating a preferred form of the invention Fig. 2 is a vertical sectional view taken on line 5-5 of Fig. 1; i

Fig. 3 is a fragmentary vertical sectional view illustrating a modified form of roll ECI'Qen;

Specification of Letters iateht.

nails 25 being1 Patented Ma eo, 1920.

Application filed September 23, 1916. Serial 11042134 "Fig.4is a fragmental sectional planview taken online 8-8 ofFigl. Referring nowthe drawings,and parti'cu-- larly to Figs. 1 and 2, 10 indicates a com ventional formv of window frame, --within which the upper and lower sliding sashe's '11 and 12 are mounted'in the usual well "known manner.. W f In this form of the device, the screen fabric, indicated atf20, is wound upon a roller 21 mounted for rotation'in suitable;

brackets 22 at the base of the window sill. The screening is of awidth to closely'fit '65 between the vertical side members of the frame,- and metallic guides-23 are'secured upon the inner faces of the "said vertical, I

members for the reception of the lateral. edges of the screen fabric. The outer or free 7o end of the fabric is provided with a reinforclng strip 24, byineans ofwhich the screen end may besecured tothe lower-cross stile of the lower window sash, screws .or-

connection e strip 24 may also be pro}.

vided with finger grips26 whereby the sash may be readily manipulated.

The roller Carries a at I v end, to each of which is connected one end 89 v of acord 28. These cords 28 extend upwardly close to the vertical members 5f the frame 10, and pass over pulleys 29 arranged. at the upper end of. the frame. The cords then pass, downwardly, and are connected to the verical stilesof the sash, 12 by con-.-.

tractile springs 30. *Each of the guides'23 is provided with a hook 31, to Iwhichthe springs 30 may be connected when it is desired to render the screen and its mechanism" inoperative. A removable casing i0 is attached to the window frame and incloses the screen roller as shown. I

From this description it is apparent that I as the ash 12 is raised the screen fabric 20 will be unrolled from its roller, while opposite movement of the sash will, by operation of the cords 28, causethe screenfabricto wind upon the roller 21. ,By means of the springs 30, it is obvious that sufficient ten- 100.

sion is produced in the screen fabric to maintain the same properlys'tretched and against buckling, and by arranging pulleys [and springs at; each side of the screen fabric,

employed to establish the, 752'- throughout its entire width, whereby tearing.

or straining of the mesh fabric is obviated. In Fig. 3 of the drawings, there is shown a further modified form of the invention t guidesy a sheet of foraminous material 'mounted in said guides, a roller having one wherein the roller 21 is rotatably mounted in its brackets22 within the casing. forming the lower sill of the frame. In this form of the invention, an opening 35 would be made in the window sill to permit of the passage therethrough of the'screen fabric and oper- In this instance, the screen rollers are arranged'within the hollow sill at the time of the erection of the house, or at the time of the construction of the frame,

and. the 'guide members are also assembled upon the frame at this time to cover the e ges of the screen fabric during its raising a and lowering movements. 20v

While the present illustration is that of the preferredembodiment of the invention,

I it is obvious that minor changes i'n'the details of construction and arrangement. of parts may be resorted to, if desired, without departing from the spirit of the invention or exceeding the scope .of the claim, and the right to make such variation in construction is hereby reserved.

What is claimed is:

, In a window screen having a pair of end of the foraminous material wound thereabout, a pulley at each end of the roller, a casing surrounding said roller, a pair of -flexible elements each having one end se-- cured to one of the pulleys, a second pair of pulleys at the upper end of the frame around which the opposite ends of the flexible elements pass, the combination of a pair of coiled springs connected at one of their ends to the flexible elements and at their other end to the window sash whereby to tighten the foraminous material at all times.

In testimony. whereof I affix my signature in presence of two witnesses.

MAURICE FORCOZ.

Witnesses: A

E. LE PIEN-NE SEPRIM, MAY QCONNELL. 

